У меня проблемы с приложением Spring Boot и Spring Batch, я делюсь своей ситуацией с моим слоем Dao, который является интерфейсом, генерирующим NPE (NullPointerException
), и он реализован, у него есть аннотация @Autowired
, и я сделал тест с Junit для проверки и работает, но я не знаю, что не так в моей работе по настройке или CustomItemProccesor, вот мой код, я надеюсь, вы можете помочь мне, пожалуйста, спасибо.
Config Job:
@ComponentScan({"com.company.batch.config","com.company.batch.dao","com.company.batch.mapper","com.company.batch.model","com.company.batch.particion","com.company.batch.procesos","com.company.batch.reader","com.company.batch.writers"})
public class ConfigJob
{
@Autowired
private JobBuilderFactory jobBuilderFactory;
@Autowired
private StepBuilderFactory stepBuilderFactory;
@Autowired
@Qualifier("sqlserverDataSource")
private DataSource dataSource;
@Bean(name = "demoPartitionStep")
public Step step1Manager(Step slaveStep) {
return stepBuilderFactory.get("step1.manager")
.<String, String>partitioner("step1", demoPartitioner())
.step(slaveStep)
.gridSize(numerohilos())
.taskExecutor(taskExecutor())
.build();
}
@Bean(name = "demoPartitioner", destroyMethod = "")
public Partitioner demoPartitioner() {
RangePartitioner partitioner = new RangePartitioner();
//partitioner.setDataSource(dataSource);
// partitioner.partition(20);
return partitioner;
}
// slave step
@Bean
public Step slaveStep(ItemReader<beangenerico> demoReader)
{
return stepBuilderFactory.get("slaveStep")
.chunk(1)
//.reader(pagingItemReader(null, null))
.reader(demoReader)
.processor(compositeProcessor())
.writer(new ListDelegateWriter())
.build();
}
@Bean
public CompositeItemProcessor compositeProcessor() {
List<ItemProcessor> delegates = new ArrayList<>(3);
delegates.add(new CustomerItemProcessor());
delegates.add(new AccountsItemProcessor());
delegates.add(new beanDataItemProccesor());
CompositeItemProcessor processor = new CompositeItemProcessor();
processor.setDelegates(delegates);
return processor;
}
@Bean(name = "demoWriter")
@StepScope
public ItemWriter< beangenerico> CustomItemWriter() {
// TODO Auto-generated method stub
CustomItemWriter wri = new CustomItemWriter();
return wri;
}
@Bean(name = "demoReader")
@StepScope
public ItemReader<beangenerico> formiikreader(@Value("#{stepExecutionContext['fromId']}") int minValue,@Value("#{stepExecutionContext['toId']}") int maxValue){
myReader fr = new myReader(minValue,maxValue);
return fr;
}
@Bean
public TaskExecutor taskExecutor() {
return new SimpleAsyncTaskExecutor("spring_batch");
}
@Bean
public Job job(@Qualifier("demoPartitionStep") Step demoPartitionStep) {
return this.jobBuilderFactory.get("job")
.start(demoPartitionStep)
.build();
}
}
Это CustomerItemProcessor для весенней партии
@Component
public class CustomerItemProcessor implements ItemProcessor<beangenerico,ThreadLocal<CopyOnWriteArrayList<beanCustomer>>> {
{
@Autowired
private CustomerDAO customerDAO;
private ThreadLocal<CopyOnWriteArrayList<beanCustomer>> listbean = new ThreadLocal<CopyOnWriteArrayList<beanCustomer>>();
public ThreadLocal<CopyOnWriteArrayList<beanCustomer>> process(beangenerico rangos) throws Exception {
System.out.println("entro a customitemprocessor");
// TODO Auto-generated method stub
listbean.set(new CopyOnWriteArrayList<beanCustomer>());
System.out.println("rangos:"+rangos.getIni()+"-"+rangos.getFin()); //si trae datos
listbean = customerDAO.getAccAgentes(rangos);
if(listbean != null) {
return listbean;
} else {
return null;
}
}
@Autowired
public void setCustomerDAO(CustomerDAO customerDAO) {
this.customerDAO = customerDAO;
}
}
Вот мой интерфейс Dao
public interface CustomerDAO {
ThreadLocal<CopyOnWriteArrayList<beanCustomer>> getAccAgentes(beangenerico bean);
}
Это реализация DAO:
@Repository("customerDAO")
public class CustomerDAOImpl implements CustomerDAO{
private String SP_SQL = "{call mysp(?, ?)}";
@Autowired
@Qualifier("sqlserverDataSource")
DataSource dataSource;
@Autowired
JdbcTemplate jdbcTemplate;
private ThreadLocal<CopyOnWriteArrayList<beanCustomer>> customerList2=new ThreadLocal<CopyOnWriteArrayList<beanCustomer>>();
private beanCustomer b = null;
public ThreadLocal<CopyOnWriteArrayList<beanCustomer>> getAccAgentes(beangenerico bean) {
// TODO Auto-generated method stub
try {
customerList2.set(new CopyOnWriteArrayList<beanCustomer>());
System.out.println("entro a metodo");
if(getJdbcTemplate().getDataSource()!=null) {
System.out.println("success con"); //with junit test is ok
}else {
System.out.println("null conn");
}
return getJdbcTemplate().query(
SP_SQL,
new Object [] {bean.getIni(),bean.getFin()}, new ResultSetExtractor<ThreadLocal<CopyOnWriteArrayList<beanCustomer>>>() {
@Override
public ThreadLocal<CopyOnWriteArrayList<beanCustomer>> extractData(ResultSet rs)
throws SQLException, DataAccessException {
// TODO Auto-generated method stub
while(rs.next()){
b = new beanCustomer();
b.setIduser(rs.getString("iduser_co"));
b.setAccount(rs.getString("account_co"));
b.setTypeUser(rs.getString("type_idag"));
customerList2.get().add(b);
}
return customerList2;
}
});
}catch(Exception e) {}
System.out.println("size lista: "+customerList2.get().size());
return customerList2;
}
@Autowired
public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
public JdbcTemplate getJdbcTemplate() {
if (null == jdbcTemplate) {
jdbcTemplate = new JdbcTemplate(dataSource);
}
return jdbcTemplate;
}
}
Трассировка стека:
2020-04-28 11:15:03 - Repeat is complete according to policy and result value.
entro a customitemprocessor
rangos:71-80
2020-04-28 11:15:03 - Applying contribution: [StepContribution: read=1, written=0, filtered=0, readSkips=0, writeSkips=0, processSkips=0, exitStatus=EXECUTING]
2020-04-28 11:15:03 - Rollback for RuntimeException: java.lang.NullPointerException: null
2020-04-28 11:15:03 - Initiating transaction rollback on application exception
java.lang.NullPointerException: null
at com.company.batch.procesos.CustomerItemProcessor.process(CustomerItemProcessor.java:69)
at com.company.batch.procesos.CustomerItemProcessor.process(CustomerItemProcessor.java:1)
at org.springframework.batch.item.support.CompositeItemProcessor.processItem(CompositeItemProcessor.java:63)
at org.springframework.batch.item.support.CompositeItemProcessor.process(CompositeItemProcessor.java:52)
at org.springframework.batch.core.step.item.SimpleChunkProcessor.doProcess(SimpleChunkProcessor.java:134)
at org.springframework.batch.core.step.item.SimpleChunkProcessor.transform(SimpleChunkProcessor.java:319)
at org.springframework.batch.core.step.item.SimpleChunkProcessor.process(SimpleChunkProcessor.java:210)
at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:77)
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:407)
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:331)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140)
at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:273)
at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:82)
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:375)
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:145)
at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:258)
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:208)
at org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler$1.call(TaskExecutorPartitionHandler.java:138)
at org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler$1.call(TaskExecutorPartitionHandler.java:135)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:748)
2020-04-28 11:15:03 - Initiating transaction rollback
2020-04-28 11:15:03 - Rolling back resourceless transaction on [org.springframework.batch.support.transaction.ResourcelessTransactionManager$ResourcelessTransaction@1337e94]
2020-04-28 11:15:03 - Handling exception: java.lang.NullPointerException, caused by: java.lang.NullPointerException: null
2020-04-28 11:15:03 - Handling fatal exception explicitly (rethrowing first of 1): java.lang.NullPointerException: null
2020-04-28 11:15:03 - Encountered an error executing step slaveStep in job job
java.lang.NullPointerException: null
at com.company.batch.procesos.CustomerItemProcessor.process(CustomerItemProcessor.java:69)
at com.company.batch.procesos.CustomerItemProcessor.process(CustomerItemProcessor.java:1)
at org.springframework.batch.item.support.CompositeItemProcessor.processItem(CompositeItemProcessor.java:63)
здесь
listbean = customerDAO.getAccAgentes(rangos);
Заранее спасибо